Automobile wheel puller



Jan. 15, 1929. 1

' J. F. HOWARTH AUTOMOBILE WHEEL FULLER Filed July 27, 1925 Patented Jan. 15, 1929.

UNITED STATES PATENT" oFFice,

JOHN r mnnn e'x HOWARTH, on HABRICKVIL-LE, NEAR- SYDNEY, AUSTRALIA} AS- SIGNOR on ONE-HALF To EneAn'mAsoN GOLDSMITH; OF NEW YORK, N. Y.

AUTOMOBILE WHEEL FULLER.

App1ication-flledJuly-27, 1925. Serial n, 46,318.

This invention relates to. an automobile wheel puller 'for removing the road wheels of antomobiles i rom their axles,

The object of this invention is to provide a universal wheel puller by means of which wheels having varying diameter of screwed hubs and havingscrewv threads of different pitches,-may be removed from then-axles.

A further object ofthe invention is to 'VlClG simple means for changing the clutch jaws to accommodate various pitches of screw threads.

A further object of the invention-is to-provide means whereby the shockof the hammer blows are prevented 'frombeing communicatedto thescrew threads of theh'ub of road wheel and the threads of the device,

Sill

. in position.

F ig. 2 of the device, as appliedto the hub of an automobile road'wheel showing the manner in which it --is to'be applied. 4 r

Fig. 2, is part broken section on line Fig.1 and-part external view showing means for applying extrapressure.

Fig. 3,-is a section on line 33 Fig. 1,,

showing means of securing clutch jaw guide Fig. 4, is an ex ernal view showin g hexagon by means of which quick adjustment of clutch jaws is obtained; pressure screw, and housing which foi-ms the-buttress' for swivel nut of clutch tightening screw.

5 isjagdetail cross section apprmfimately on tlie flirie' 5- 5 offl ig. I I

Th'jejhub of an automohile road wheel is shown at 11, with its axle 12, within its bore 13, having a 'screw thifeaded portion 15, to which the wheel cap isfitted.

The-body-lfi, for-ms ahousinq in which a spii-alseroll plate 17, rotatadle by means of a wrench applied to hexagon 18, thereby causing the clutch jaws 19, simultaneously th advance to or recede from the center thus" closing or opening-the clutch mechanism. The clutch I in spiral grooves of plate17.

An annular ringQO, is secured'within the housing 16, by means of taper pins 21,which estend thru the wall ofthe housing-16,'and 1111320.. I I. I

The ring 20, is radially grooved'to form guide and support'for clutch aws 19,ports 22 being provided in housingi lfl, to allow'jaws 1.) to extend thru its walls. i

The spiral grooved plate 17, is concentrlcally screwed to accommodate screw i23. which is bored to receive- .a-fliee fitting plunger 2 .1., with a head 25. p I i A means of applying heavy pressure on the clutch laws 19, is; provided by screw 26.

pivot-ed nnt 27, swivel 28 which engages holes 29, in back of spiral gro,oved,;plate-17 Nut 27 is free to oscillate incup '30, in order to follow the. swivel'28, inits arcuate move.- ment. The said swivel, pivot-nut, and screw may bel fted out when extreme tightness f clntch'j'aws is unnecessary;

The manner in Whichthis device is to be used is as'follows:

The dust cap is removed from the automobile road wheel exposing #chfth ad 1L5, and'the nut removed from the threaded citension of-axle.

Pressurescrew 23 is either removed or screwed well back, preferably removed. The device is operated by means of a wrench on hexagon 18 which rotates spirall grooved plate 17, opening clutchjaws 19., The device is then placed on the scrzewi'ed hub 15, and jaws closed tightly by i'otatiiigplat e 1Q7Qthus engaging the screwedh ib with the screwed ends of clutch jaws 19. a i

By looking thru center hole from which the pressurescrlew has been removed, the end of axle '12, may be seen,v and should the I threads of clutch" jaws be crossed the 12. would not be concentric. The pressure screw 23 and plunger 24;, are

then replaced and the screw pre sure applied, which will often be sufficient to removeia wheel, but" should the wheel be extremelv iifhfi; i w ll be h -s r'yito s't r ke f th of plungerfit, with the 'liamnierat the same timemaintaining a pressurewith scre'ivl23, which is suflicient to remove any but a seized wheel.

By this construction the force of the hamjaws 19, have lands which engage mer blows are communicated direct to the axle and not to the threads of pressure screw or wheel hub.

When desired to apply extra pressure to the clutch jaws 19-, the assembly shown in screw 26, swiveinut27, pivot 28, holes29 in back of spiral. grooved plate 17, and housing for pivot nut 30 is used. This assembly is placed in position and pressure exerted by means of screw 26, and when desired is released by unscrewing. v

In this device I prefer and have designed the device with threeclutch jaws, as Luis construction accommodates itselt to any iiiequality of either the clutch mechanism or the wheel hub. I

Having thus described my said inver ion and the manner in which it is to be applied, what I claim is:

1. An automobile wheel puller comprising a hollow body having in one end an opening for receiving-the hub of the whcel to be pulled, together with the end portion of the wheel supporting spindle projecting beyond the hub, a plurality of radially slidablejaws disposed within the body, means extending through the opposite end portion of the body and connected to'the aws for operating the same to move into and out of engagement with the hub when the same is arranged withinthe body, and means extending through the 5 last named end portion of the body responsi'veto manipulation with a tool to impinge upon the projecting end portion of the spinwhen the jaws engage the hub and thereby efiectoutward displacement otthe hub from the spindle. v

2. An automobile wheel puller comprising hollow body having in one end an opening tor receiving the hub of thewhe'el to be pulled, together with-the end portion of wheel supporting spindle projecting beyond the hub, a plurality of radially slieable jaws disposed within the body, means extending through the body and connected to the jaws for operating the same to move into and out of engagement with the hub when the same is arranged within the body and means extending through the jaw operating means responsive to manipulation with a tool from the exterior'of the body to impinge upon the projeetingend portion of the spindle when the jaws engage the hub, and thereby eliect outward displacement of the hub from the spindle.

, 3. An automobile wheel puller. comprising a hollow body having in one end an opening for receiving the hub of the wheel to be pulled, together with the end portion of the wheel supporting spindle projecting beyond the hub, and further having afplurality of peripherally disposed recesses, a plurality of radially slidable aws disposed within the body and extending into the recesses thereof, a turnable member'disposed within the body and having a portionextending through the opposite end thereof adapted for allowing the member to be turned manually, said jaws and turnable member having engaging struca tool to impinge upon the projecting end portion of the spindle when the jaws engage the hub and thereby effect outward displace ment of the hub from the spindle.

4:, An automobile wheel puller comprising a hollow body having in one end an opening for receiving the hub of the wheel to be pulled, together with the end portion of the wheel supporting spindle projecting beyond the hub, a plurality of radially slid-able jaws disposed within the body, means extending through the opposite end portion of the body and connected. to the jaws for operating the sameto move into and out of engagement with the hub when the same is arranged with-- in the body, and means screwed into the body and responsive Lo-manipulation with a tool to impingeupon the projecting end portion of the spindle when the'jaws engage the hub and thereby effect outward displacement of the hub from the spindle.

5. An automobile w ieel puller comprising hollow body having in one end an opening for receiving the hub of the wheel. to be pulled, together with the "end portion ot the wheel supporting spindle projecting beyond the hub, a plurality of radially slidable aws disposed within the body, means extending through the oppositeend portion of the body and connected to the aws for operating the same to move into and out of engagement with the hub when the same is arranged within the body, and means extending through the last named end portion of the bodyre sponsive to manipulation with a tool to im pinge upon theprojectingend portion of the spindle when the jaws engage the hub and thereby eftectoutward displacement of the hub from the spindle, said last named means,

including a member screwed into the body and a plunger slid'ablelwithin the member.

f Joint,Funniest K;nowan'rn, 

